ml: Avoid to use the collided status code

1 is also indicated for FLB_TRUE.

Signed-off-by: Hiroshi Hatake <[email protected]>

Author: cosmo0920

include/fluent-bit/multiline/flb_ml.h

@@ -57,7 +57,7 @@
 
 /* Return codes */
 #define FLB_MULTILINE_OK         0
-#define FLB_MULTILINE_TRUNCATED  1
+#define FLB_MULTILINE_TRUNCATED  2
 
 /* Maximum number of groups per stream */
 #define FLB_ML_MAX_GROUPS       6

src/multiline/flb_ml.c

@@ -213,6 +213,7 @@ static int package_content(struct flb_ml_stream *mst,
 {
     int len;
     int ret;
+    int truncated = FLB_FALSE;
     int rule_match = FLB_FALSE;
     int processed = FLB_FALSE;
     int type;
@@ -259,11 +260,13 @@ static int package_content(struct flb_ml_stream *mst,
                                   stream_group, full_map, buf, size, tm,
                                   val_content, val_pattern);
         if (ret == -1) {
-            processed = FLB_FALSE;
+            return -1;
         }
-        else {
-            processed = FLB_TRUE;
+
+        if (ret == FLB_MULTILINE_TRUNCATED) {
+            truncated = FLB_TRUE;
         }
+        processed = FLB_TRUE;
     }
     else if (type == FLB_ML_ENDSWITH) {
         len = flb_sds_len(parser->match_str);
@@ -340,6 +343,10 @@ static int package_content(struct flb_ml_stream *mst,
         msgpack_pack_object(&stream_group->mp_md_pck, *metadata);
     }
 
+    if (truncated) {
+        return FLB_MULTILINE_TRUNCATED;
+    }
+
     return processed;
 }